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Implantation & Pregnancy | Human Reproduction Part 7 | Biology Class 12 | HINDI

the topic of this presentation is implantation and pregnancy Cleavage is a special kind of mitotic division which starts in zygote and continues till formation of blastula the daughter calls formed during cleavage are known as blastomeres G1 phase of cell cycle does not occur during cleavage recall cell cycle, cytoplasm content of daughter cell […]

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Menstrual Cycle | Human Reproduction Part 5 | Biology Class 12 | HINDI

topic if this presentation is menstrual cycle The reproductive cycle in female primates (monkey, ape and human) is called menstrual cycle. during menstrual cycle, oocyte matures in ovary and this event is called ovarian cycle and endometrium of uterus develops, changes in uterus constitute uterine cycle it means that menstrual cycle includes two events – […]

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You Can Inherit Mitochondrial DNA from Both Parents! | SciShow News

♪ Everybody knows that the DNA you inherit from each biological parent is an even split… I mean, hopefully everybody knows: you get half from the egg and half from the sperm that combines to make you. Well, almost. 37 genes are found in your mitochondria, those little energy factories of cells. And that mitochondrial […]

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Female Reproductive System | Biology

We have already studied male reproductive system, and now in this lesson will mainly focus on female reproductive system. Male reproductive system and female reproductive system are quite different from each other. They differ because there’s some different purposes. Male reproductive system mainly aims to produce male gametes and transfer it to female body. While […]

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Sexual Reproduction in Flowering Plants | Biology

We already learned that there are two modes of reproduction. Asexual mode and modes of reproduction. Asexual mode and sexual mode of reproduction. In asexual sexual mode of reproduction. In asexual mode of reproduction only one mode of reproduction only one individual is involved in the reproduction. individual is involved in the reproduction. While in […]

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Chromosomal Abnormalities, Aneuploidy and Non-Disjunction

Hi, bio people! We’re going to follow up on our discussion of mitosis and meiosis by talking about chromosomal abnormalities. These are all terms that you should be familiar with by the end of this screencast, and we’re going to start off by talking about karyotypes, and then move on to nondisjunction, Down syndrome and […]

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